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52949213 = 471126579
BaseRepresentation
bin1100100111111…
…1000011011101
310200122002122222
43021333003131
5102023333323
65130515125
71212026612
oct311770335
9120562588
1052949213
1127985589
1215895aa5
13ac7b8c5
147064509
1549ad9c8
hex327f0dd

52949213 has 4 divisors (see below), whose sum is σ = 54075840. Its totient is φ = 51822588.

The previous prime is 52949191. The next prime is 52949227. The reversal of 52949213 is 31294925.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52949213 - 224 = 36171997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52948213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 563243 + ... + 563336.

It is an arithmetic number, because the mean of its divisors is an integer number (13518960).

Almost surely, 252949213 is an apocalyptic number.

It is an amenable number.

52949213 is a deficient number, since it is larger than the sum of its proper divisors (1126627).

52949213 is a wasteful number, since it uses less digits than its factorization.

52949213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126626.

The product of its digits is 19440, while the sum is 35.

The square root of 52949213 is about 7276.6209877937. The cubic root of 52949213 is about 375.5085556410.

The spelling of 52949213 in words is "fifty-two million, nine hundred forty-nine thousand, two hundred thirteen".

Divisors: 1 47 1126579 52949213